Step-by-step explanation:
<h2>a - b = a + (-b)</h2><h2>a + b = a - (-b)</h2>
for any real numbers
Answer:
b
Step-by-step explanation:
because we can not some times change the places in addition so b is the correct answer
Answer:
You can use Gaussian Elimination.
Double both sides of the first equation and add the second equation.
6x + 4y = 8
5x - 4y = 3
---------------
11x = 11
x = 1
5 - 4y = 3
-4y = -2
y = 1/2
Step-by-step explanation:
Answer:
x = 7
Step-by-step explanation:
Pytago:
6:35pm, because 35 minutes before 7:10 pm is 6:35pm :)
